994F Wheel Loader Machine Systems Caterpillar

Selector Valve (Hydraulic) - Remove

Usage:

994F 442

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	FT-1115	Vacuum Cap	1

Start By:

Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
Release the hydraulic system pressure. Refer to Disassembly and Assembly, " Hydraulic System Pressure - Release".

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

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Illustration 1	g01433682

Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply 276 to 414 kPa (40 to 60 psi). This procedure will pull a vacuum on the hydraulic system.

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Illustration 2	g01434779

Disconnect tube assemblies (1) and (2) from selector valve (3). Disconnect tube assemblies (4) and (5) .

Disconnect swivel tees (6) and (7). Remove bolts (8), the washers, and the nuts that secure selector valve (3) to the plate. Remove selector valve (3) from the plate.

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Illustration 3	g01433685

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Personal injury can result from being struck by parts propelled by a released spring force.
Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

Remove plug (9), O-ring seal (10), spring (11), and stem (12) from selector valve body (13). Remove spring (14), O-ring seal (15), and plug (16) from selector valve body (13) .